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12. Contributors

Author

Bednarski, Richard M., primary, Bidwell, Lori A., additional, Bonagura, John D., additional, Hardy, Joanne, additional, Hubbell, John A.E., additional, Kerr, Carolyn L., additional, Lerche, Phillip, additional, Matthews, Nora S., additional, McDonell, Wayne N., additional, Muir, William W., additional, Robertson, James T., additional, Robinson, N. Edward, additional, Sams, Richard A., additional, Schwarzwald, Colin C., additional, Scicluna, Claire, additional, Skarda, Roman T., additional, Steffey, Eugene P., additional, Wagner, Ann E., additional, and Yamashita, Kazuto, additional

Published
2009
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17. Contributors

Author

Anderson, Nancy L., primary, Alvarez, Francisco J., additional, Armbrust, Laura J., additional, Aron, Dennis N., additional, Bateman, Shane W., additional, Beale, Karin Muth, additional, Bednarski, Richard M., additional, Bellah, Jamie R., additional, Berkwitt, Larry, additional, Bettenay, Sonya V., additional, Biller, David S., additional, Birchard, Stephen J., additional, Bjorling, Dale E., additional, Bohling, Mark W., additional, Bonagura, John D., additional, Bonczynski, Jennifer, additional, Boothe, Harry W., additional, Boudrieau, Randy J., additional, Bowles, Heather L., additional, Bright, Ronald M., additional, Brooks, Marjory B., additional, Budsberg, Steven C., additional, Buffington, C. Anthony, additional, Calvert, Clay A., additional, Carothers, Marcia A., additional, Chen, Sue, additional, Chew, Dennis J., additional, Cole, Lynette K., additional, Colitz, Carmen M.H., additional, Osborn, Sarah Colombini, additional, Cuddon, Paul A., additional, Costa-Gómez, Támara M., additional, Davis, Kechia M., additional, DeCamp, Charles E., additional, Dueland, R. Tass, additional, Dziezyc, Joan, additional, Egger, Erick L., additional, Ellis, Christine, additional, Fenner, William R., additional, Fingland, Roger B., additional, Ford, Richard B., additional, Forrester, S. Dru, additional, Frank, Linda A., additional, Gamblin, Rance M., additional, Gieg, Jennifer, additional, Gilson, Stephen D., additional, Glaze, Mary B., additional, Graham, Joanne C., additional, Grant, David, additional, Graves, Thomas K., additional, Greco, Deborah S., additional, Green, Henry W., additional, Greenberg, Tia B., additional, Griffin, Craig E., additional, Grooters, Amy M., additional, Hamlin, Robert L., additional, Harris, Don J., additional, Hay, Callum W., additional, Hedlund, Cheryl S., additional, Helton-Rhodes, Karen, additional, Hillier, Andrew, additional, Holloway, Cheryl, additional, Hitchinson, Robert V., additional, Hubbell, John A.E., additional, Jerram, Richard M., additional, Johnson, Lynelle R., additional, Johnson, Susan E., additional, Johnston, Matthew S., additional, Jones, Denise, additional, Kay, Nancy D., additional, Keene, Bruce W., additional, Kern, Thomas J., additional, Kintzer, Peter P., additional, Kirschner, Susan E., additional, Kisseberth, William C., additional, Knapp, David W., additional, Koplitz, Shianne L., additional, Kowaleski, Michael P., additional, Kunkle, Gail A., additional, Kwochka, Kenneth W., additional, Labato, Mary Anna, additional, Lehmkuhl, Linda B., additional, Luttgen, Patricia J., additional, Manley, Paul A., additional, March, Philip A., additional, Marretta, Sandra Manfra, additional, Matthews, Hilary K., additional, McEntee, Margaret C., additional, McLoughlin, Mary A., additional, Miller, Michael S., additional, Millichamp, Nicholas J., additional, Millis, Darryl L., additional, Milovancev, Milan, additional, Moore, Cecil P., additional, Morris, Daniel O., additional, Mueller, Ralf S., additional, Muir, William W., additional, Mundell, Alan C., additional, Nichols, Rhett, additional, Noxon, James O., additional, Oglesbee, Barbara L., additional, Olmstead, Marvin L., additional, Page, Rodney L., additional, Palmisano, Matthew, additional, Panciera, David L., additional, Parker, Robert B., additional, Peterson, Janet L., additional, Peterson, Mark E., additional, Pilny, Anthony, additional, Pinchbeck, Lauren R., additional, Podell, Michael, additional, Prueter, James C., additional, Quesenberry, Katherine E., additional, Randolph, John F., additional, Raskin, Rose E., additional, Reine, Nyssa J., additional, Ridge, Laura G., additional, Rochat, Mark C., additional, Rosenkrantz, Wayne S., additional, Rosser, Edmund J., additional, Roush, James K., additional, Rush, John E., additional, Samii, Valerie F., additional, Scagliotti, Randall H., additional, Scheidt, Vicki J., additional, Schenck, Patricia A., additional, Schertel, Eric R., additional, Schober, Karsten E., additional, Shell, Linda G., additional, Shelton, G. Diane, additional, Sherding, Robert G., additional, Shires, Peter, additional, Sicard, Gretchen K., additional, Smeak, Daniel D., additional, Smith, Francis W.K., additional, Smith, Mark M., additional, Stepien, Rebecca L., additional, Stone, Elizabeth A., additional, Stone, Michael, additional, Swaim, Steven F., additional, Taylor, Robert A., additional, Tilley, Larry P., additional, Tomlinson, James, additional, Vail, David M., additional, Wack, Raymund F., additional, White, Stephen D., additional, and Wilkie, David A., additional

Published
2006
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20. Effect of 50% and maximal inspired oxygen concentrations on respiratory variables in isoflurane-anesthetized horses

Author

Lerche Phillip, Bednarski Richard M, Aarnes Turi K, Hubbell John AE, and Muir William W

Subjects
Veterinary medicine, SF600-1100
Abstract

Abstract Background The purpose of this study was to compare the effects of 0.5 fraction of inspired oxygen (FiO2) and >0.95 FiO2 on pulmonary gas exchange, shunt fraction and oxygen delivery (DO2) in dorsally recumbent horses during inhalant anesthesia. The use of 0.5 FiO2 has the potential to reduce absorption atelectasis (compared to maximal FiO2) and augment alveolar oxygen (O2) tensions (compared to ambient air) thereby improving gas exchange and DO2. Our hypothesis was that 0.5 FiO2 would reduce ventilation-perfusion mismatching and increase the fraction of pulmonary blood flow that is oxygenated, thus improving arterial oxygen content and DO2. Results Arterial partial pressures of O2 were significantly higher than preanesthetic levels at all times during anesthesia in the >0.95 FiO2 group. Arterial partial pressures of O2 did not change from preanesthetic levels in the 0.5 FiO2 group but were significantly lower than in the >0.95 FiO2 group from 15 to 90 min of anesthesia. Alveolar to arterial O2 tension difference was increased significantly in both groups during anesthesia compared to preanesthetic values. The alveolar to arterial O2 tension difference was significantly higher at all times in the >0.95 FiO2 group compared to the 0.5 FiO2 group. Oxygen delivery did not change from preanesthetic values in either group during anesthesia but was significantly lower than preanesthetic values 10 min after anesthesia in the 0.5 FiO2 group. Shunt fraction increased in both groups during anesthesia attaining statistical significance at varying times. Shunt fraction was significantly increased in both groups 10 min after anesthesia but was not different between groups. Alveolar dead space ventilation increased after 3 hr of anesthesia in both groups. Conclusions Reducing FiO2 did not change alveolar dead space ventilation or shunt fraction in dorsally recumbent, mechanically ventilated horses during 3 hr of isoflurane anesthesia. Reducing FiO2 in dorsally recumbent isoflurane anesthetized horses does not improve oxygenation or oxygen delivery.

Published
2011
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21. Effect of pre-warming on perioperative hypothermia and anesthetic recovery in small breed dogs undergoing ovariohysterectomy

Author

Aarnes, Turi K., Bednarski, Richard M., Lerche, Phillip, and Hubbell, John A.E.

Subjects
Ovariectomy, Scientific, Hyperthermia, Induced, Hypothermia, Anesthesia, General, Hysterectomy, Body Temperature, Dogs, Postoperative Complications, Anesthesia Recovery Period, Animals, Female, Prospective Studies, Intraoperative Complications
Abstract

This study compared perianesthetic body temperatures and times to recovery from general anesthesia in small dogs that were either warmed for 20 minutes prior to anesthesia or not warmed. Twenty-eight client-owned dogs that were presented for ovariohysterectomy were included in the study. Small (

Published
2017

23. Comparison of cardiorespiratory variables in dorsally recumbent horses anesthetized with guaifenesin-ketamine-xylazine spontaneously breathing 50% or maximal oxygen concentrations

Author

Karrasch, Nicole M., Hubbell, John A.E., Aarnes, Turi K., Bednarski, Richard M., and Lerche, Phillip

Subjects
Xylazine, Anesthetics, Dissociative, Dose-Response Relationship, Drug, Respiration, Posture, Scientific, Blood Pressure, Carbon Dioxide, Oxygen, Guaifenesin, Heart Rate, Animals, Hypnotics and Sedatives, Female, Ketamine, Horses, Cardiac Output, Expectorants
Abstract

This study compared cardiorespiratory variables in dorsally recumbent horses anesthetized with guaifenesin-ketamine-xylazine and spontaneously breathing 50% or maximal (> 90%) oxygen (O2) concentrations. Twelve healthy mares were randomly assigned to breathe 50% or maximal O2 concentrations. Horses were sedated with xylazine, induced to recumbency with ketamine-diazepam, and anesthesia was maintained with guaifenesin-ketamine-xylazine to effect. Heart rate, arterial blood pressures, respiratory rate, lithium dilution cardiac output (CO), inspired and expired O2 and carbon dioxide partial pressures, and tidal volume were measured. Arterial and mixed-venous blood samples were collected prior to sedation (baseline), during 30 minutes of anesthesia, 10 minutes after disconnection from O2, and 30 minutes after standing. Shunt fraction, O2 delivery, and alveolar-arterial O2 partial pressures difference [P(A-a)O2] were calculated. Recovery times were recorded. There were no significant differences between groups in cardiorespiratory parameters or in P(A-a)O2 at baseline or 30 minutes after standing. Oxygen partial pressure difference in the 50% group was significantly less than in the maximal O2 group during anesthesia.

Published
2015

24. Total intravenous anesthesia using a midazolam-ketamine-xylazine infusion in horses: 46 cases (2011-2014).

Author

Aarnes, Turi K., Lerche, Phillip, Bednarski, Richard M., and Hubbell, John A. E.

Subjects
INTRAVENOUS anesthesia, MIDAZOLAM, KETAMINE, XYLAZINE, HORSE diseases, MEDICAL records, DISEASE risk factors, THERAPEUTICS
Abstract

Copyright of Canadian Veterinary Journal / Revue Vétérinaire Canadienne is the property of Canadian Veterinary Medical Association and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2018

36. Recovery from desflurane anesthesia in horses with and without post-anesthetic xylazine.

Author

Aarnes, Turi K., Bednarski, Richard M., Bertone, Alicia L., Hubbell, John A. E., and Lerche, Phillip

Subjects
DESFLURANE, XYLAZINE, ANESTHESIA, WILCOXON signed-rank test, HORSES, ISOFLURANE, ANESTHETICS
Abstract

Copyright of Canadian Journal of Veterinary Research / Revue Canadienne de Recherche Vétérinaire is the property of Canadian Veterinary Medical Association and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2014

46. Comparison of invasive and oscillometry blood pressure measurement techniques in anesthetized camelids.

Author

Aarnes, Tun K., Hubbell, John A. E., Lerche, Phillip, and Bednarski, Richard M.

Subjects
BLOOD pressure measurement, CAMELIDAE, ACCURACY, ANIMAL anesthesia, VETERINARY anesthesia
Abstract

The article presents a study which compared the oscillometric and invasive techniques for measuring blood pressure in anesthetized camelids. Assessment of the oscillometric method's accuracy in monitoring arterial blood pressure (ABP) in anesthetized camelids was performed. Results suggested that accurate monitoring of ABP in anesthetized camelids could not be accomplished through the oscillometric technique.

Published
2012

49. Anesthesia and Pain Control

Author

Bednarski, Richard M.

Abstract

Successful anesthetic management of critically ill dogs and cats is predicated on familiarity with the pharmacologic properties of a variety of anesthetic drugs. Knowledge of the altered physiology of the critically ill allows an anesthetic regimen to be selected that minimizes drug induced-depression or alteration of the abnormal body system(s). Successful pain management is based on the ability to recognize signs attributable to pain. Pain can be controlled with local anesthetics, nonsteroidal antiinflammatory drugs, and opioids.

Published
1989
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